Experimental study on bond properties of GFRP bars and barite radiation shielding concrete

被引：0

作者：

Liu, Tingbin ^{[1
]}

Sun, Pengcheng ^{[1
]}

Liu, Xing ^{[1
,3
]}

Xu, Ning ^{[4
]}

Shi, Zhiwei ^{[2
]}

Yue, Kangle ^{[1
]}

Hua, Lin ^{[1
]}

Li, Shuanzhong ^{[1
]}

机构：

[1] Lanzhou Jiaotong Univ, Sch Civil Engn, Lanzhou 730070, Peoples R China

[2] Gansu Acad Bldg Sci, Lanzhou 730058, Peoples R China

[3] Qingdao Metro Operat Co Ltd, Qingdao 266011, Peoples R China

[4] China MCC20 Grp Corp Ltd, Shanghai 201999, Peoples R China

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2025年 / 487卷

关键词：

Bond properties; GFRP bars; Barite Radiation Shielding Concrete (BRSC); Central pull-out test; REINFORCED POLYMER BARS; STRENGTH; PERFORMANCE;

D O I：

10.1016/j.conbuildmat.2025.141940

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Nuclear waste is highly radioactive and has a long half-life, requiring engineering structures to have high radiation protection performance and a long service life. Additionally, it imposes high requirements for the durability of structures in corrosive environments. Exploring the use of materials that can satisfy both radiation protection functionality and durability for engineering structures is of great significance to ensure the safety of nuclear industry systems. Glass Fiber Reinforced Polymer (GFRP) bars and Barite Radiation Shielding Concrete (BRSC) were used to replace conventional reinforced concrete. Based on the strength grade of BRSC, factors such as the bond length, diameter, and surface treatment of GFRP bars, as well as the type of FRP bars, were investigated. Central pull-out tests were conducted to study the bonding properties between GFRP bars and BRSC. The failure mode, bond-slip curves, and bond strength of the specimens were analyzed. In this case, the bond strength of C30 and C40 concrete decreased by 22.5 % and 16.2 %, respectively, for BRSC compared to ordinary concrete. With the increase in the strength of BRSC, the bond strength increased by 77.7 % and 23.8 %. Additionally, the influence of various factors on the bond properties of GFRP bars and BRSC was investigated, and the bond strength calculation formula considering the parameter effect of helically-wrapped GFRP bars was established.

引用

页数：16

共 43 条

[1] Bond behavior of fiber reinforced polymer bars under direct pullout conditions [J].

Achillides, Z ;

Pilakoutas, K .

JOURNAL OF COMPOSITES FOR CONSTRUCTION, 2004, 8 (02) :173-181

[2] Radiation shielding of concretes containing different aggregates [J].

Akkurt, I ;

Basyigit, C ;

Kilincarslan, S ;

Mavi, B ;

Akkurt, A .

CEMENT & CONCRETE COMPOSITES, 2006, 28 (02) :153-157

[3]

[Anonymous], 2011, Standard for mix proportion design of ordinary concrete: JGJ 552011

[4]

[Anonymous], 2022, ACI Code 440.11-22

[5]

[Anonymous], 2007, JGJ52-2006

[6] Experimental study of bond behaviour between concrete and FRP bars using a pull-out test [J].

Baena, Marta ;

Torres, Lluis ;

Turon, Albert ;

Barris, Cristina .

COMPOSITES PART B-ENGINEERING, 2009, 40 (08) :784-797

[7]

Baitollah B., 2022, Materials, V15, p2173.

[8] Prediction of compressive strength of heavyweight concrete by ANN and FL models [J].

Basyigit, C. ;

Akkurt, Iskender ;

Kilincarslan, S. ;

Beycioglu, A. .

NEURAL COMPUTING & APPLICATIONS, 2010, 19 (04) :507-513

[9] Experimental and damage modeling research on direct shear behavior of recycled concrete with pebble/gravel coarse aggregate [J].

Chen, Yuliang ;

Wang, Qi ;

Ye, Peihuan ;

Zhang, Wenhai .

JOURNAL OF BUILDING ENGINEERING, 2024, 98

[10] Influence of serpentinite aggregate on the microstructure and durability of radiation shielding concrete [J].

Dabrowski, Mariusz ;

Jozwiak-Niedzwiedzka, Daria ;

Bogusz, Karolina ;

Glinicki, Michal A. .

CONSTRUCTION AND BUILDING MATERIALS, 2022, 337

← 1 2 3 4 5 →